CN110233049B - Folding capacitor core and processing technology thereof - Google Patents
Folding capacitor core and processing technology thereof Download PDFInfo
- Publication number
- CN110233049B CN110233049B CN201910444613.7A CN201910444613A CN110233049B CN 110233049 B CN110233049 B CN 110233049B CN 201910444613 A CN201910444613 A CN 201910444613A CN 110233049 B CN110233049 B CN 110233049B
- Authority
- CN
- China
- Prior art keywords
- double
- film
- sided
- metalized
- sided metalized
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 44
- 238000005516 engineering process Methods 0.000 title description 8
- 239000011104 metalized film Substances 0.000 claims abstract description 155
- 239000010408 film Substances 0.000 claims abstract description 78
- 229910052751 metal Inorganic materials 0.000 claims description 56
- 239000002184 metal Substances 0.000 claims description 56
- 239000011888 foil Substances 0.000 claims description 43
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910000611 Zinc aluminium Inorganic materials 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 229910001128 Sn alloy Inorganic materials 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 239000004793 Polystyrene Substances 0.000 claims description 5
- 238000005468 ion implantation Methods 0.000 claims description 5
- 229920006289 polycarbonate film Polymers 0.000 claims description 5
- 229920006267 polyester film Polymers 0.000 claims description 5
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 229920002223 polystyrene Polymers 0.000 claims description 5
- 238000007639 printing Methods 0.000 claims description 5
- 238000004544 sputter deposition Methods 0.000 claims description 5
- 238000007751 thermal spraying Methods 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 abstract description 5
- 238000004804 winding Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 239000010409 thin film Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/006—Apparatus or processes for applying terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/232—Terminals electrically connecting two or more layers of a stacked or rolled capacitor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/252—Terminals the terminals being coated on the capacitive element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/33—Thin- or thick-film capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention relates to a folding capacitor core, which comprises a double-sided metalized film, wherein the double-sided metalized film comprises an insulating film, the two side surfaces of the insulating film are respectively provided with a first metalized surface and a second metalized surface, the double-sided metalized film is transversely folded in a reciprocating manner to form a double-sided metalized film folding piece, the left end and the right end of the double-sided metalized film folding piece are respectively provided with a first terminal and a second terminal, the first terminal is in conductive contact with the first metalized surface, and the second terminal is in conductive contact with the second metalized surface. The folding capacitor core is formed by transversely and reciprocally folding the double-sided metalized film, and compared with the traditional film capacitor core formed by winding, the folding capacitor core saves a layer of isolation paper, so that the volume can be reduced by more than 20%.
Description
Technical Field
The invention relates to a capacitor, in particular to a folding capacitor core and a processing technology thereof.
Background
The capacitor core of the existing film capacitor is generally formed by overlapping and winding a double-sided metalized film and isolation paper, vapor-plated metal layers are arranged on two sides of the double-sided metalized film, the two vapor-plated metal layers are led out through terminals to form a plurality of electrodes of the capacitor, and the isolation paper is used for preventing the two electrodes from contacting when being wound. In the structure, the double-sided metalized film is unfolded to form the same flat capacitor, and the two evaporated metal layers form two electrodes, so that the volume of the capacitor can be increased by adding the isolation paper in the winding process of the capacitor, and the surface areas of the two electrodes of the capacitor are not influenced. In addition, the wound double-sided metallized film acts like a coil, and will generate an inductance.
Disclosure of Invention
The invention aims to provide a folding capacitor core with simple and reasonable structure, small volume and low cost and a processing technology thereof.
The purpose of the invention is realized as follows:
the utility model provides a foldable electric capacity core, includes two-sided metallized film, and two-sided metallized film includes insulating film, and insulating film both sides surface is equipped with first metallized surface and second metallized surface respectively, its characterized in that: the double-sided metalized film is transversely folded in a reciprocating mode to form a double-sided metalized film folding piece, a first terminal and a second terminal are arranged at the left end and the right end of the double-sided metalized film folding piece respectively, the first terminal is in conductive contact with the first metalized surface, and the second terminal is in conductive contact with the second metalized surface.
The aim of the invention can also be solved by the following technical measures:
more specifically, the longitudinal edges of the two side surfaces of the double-sided metalized film are respectively provided with a first blank edge and a second blank edge which expose the surface of the insulating film, and the first blank edge and the second blank edge are distributed from left to right.
As a further proposal, the longitudinal edge of the first margin is also provided with a first metallized edge which is separated from the first metallized surface; the longitudinal edge of the second margin is also provided with a second metallized edge spaced from the second metallized surface. Because the first metalized edge is not conducted with the first metalized surface, and the longitudinal edges of the first metalized edge and the second metalized surface are positioned on the same side, even though the first metalized edge and the second metalized edge pass through the second terminal channel, short circuit with the first metalized surface can not be caused, but the metalized edge is in contact with the terminal, so that the attachment area of the terminal is increased, and the terminal connection is more reliable.
As a further proposal, the longitudinal edge of the first metalized surface is also provided with a first thickened metalized edge; the longitudinal edge of the second metallized surface is also provided with a second thickened metallized edge. By providing a thickened metalized edge, the over-current capability and the terminal attachment capability can be increased.
As a further scheme, the material of the first metalized surface and the second metalized surface is aluminum, copper, zinc-aluminum alloy or tin alloy, and the aluminum, copper, zinc-aluminum alloy or tin alloy is attached to the surface of the insulating film by evaporation (but not limited to the above materials and attachment methods); or the first metalized surface is replaced by a first metal foil, the second metalized surface is replaced by a second metal foil, and the first metal foil and the second metal foil are respectively arranged on two sides of the insulating film; the insulating film is an organic film, and the organic film is a polypropylene film, a polystyrene film, a polyphenylene sulfide film, a polyester film or a polycarbonate film (but not limited to the above materials).
As a further scheme, the double-sided metalized film folding piece is formed by transversely folding and compressing a single double-sided metalized film in a reciprocating mode.
As a further scheme, the double-sided metalized film folding piece is formed by folding more than two double-sided metalized films and then transversely folding and compressing the two double-sided metalized films in a reciprocating manner.
As a further scheme, the first terminal and the second terminal are formed on the end face of the double-sided metalized film folding piece through ion implantation, conductive medium sputtering, metal thermal spraying or metal droplet printing.
A processing technology of a folding capacitor core is characterized in that: step one, preparing a double-sided metalized film coil stock; feeding the double-sided metalized film discharged from the double-sided metalized film coil stock into a folding machine, and processing the double-sided metalized film into a double-sided metalized film folding piece through the folding machine; respectively arranging a first terminal and a second terminal at two ends of the double-sided metalized film folding piece to form a capacitor core;
or, step one, preparing a large-amplitude double-sided metalized film coil material which is provided with more than two groups of double-sided metalized films in parallel; feeding the large-amplitude double-sided metalized film discharged from the large-amplitude double-sided metalized film coil stock into a splitting machine so as to split each group of double-sided metalized films from the large-amplitude double-sided metalized film; step three, respectively feeding each group of the cut double-sided metalized films into a folding machine, and processing the double-sided metalized films into double-sided metalized film folding pieces through the folding machine; step four, respectively arranging a first terminal and a second terminal at two ends of the double-sided metalized film folding piece to form a capacitor core;
or, step one, preparing a large-amplitude double-sided metalized film coil material which is provided with more than two groups of double-sided metalized films in parallel; feeding the large-amplitude double-sided metalized film discharged from the large-amplitude double-sided metalized film coil stock into a folding machine, and processing the large-amplitude double-sided metalized film into a wide-amplitude double-sided metalized film folding piece through the folding machine; cutting the wide double-sided metalized film folding piece into a corresponding double-sided metalized film folding piece according to the width specification of the double-sided metalized film; and step four, respectively arranging a first terminal and a second terminal at two ends of the double-sided metalized film folding piece, namely forming the capacitor core.
As a further scheme, the folding machine comprises a workbench, a left chuck, a right chuck and swing rollers, wherein the left chuck and the right chuck are respectively and movably arranged at the left side and the right side of the workbench, and the swing rollers are positioned above the left chuck and the right chuck and are arranged in a swinging manner from left to right; the swing rollers are arranged in parallel, a gap is formed between the two swing rollers, after the double-sided metalized film or the large-amplitude double-sided metalized film passes through the gap, one end of the double-sided metalized film or the large-amplitude double-sided metalized film is clamped on the workbench through the left chuck or the right chuck, and then the double-sided metalized film or the large-amplitude double-sided metalized film is folded by means of one-loose and close fit of the swing rollers which swing left and right, the left chuck and the right chuck and the double-sided metalized film or the large-amplitude double-sided metalized film on the workbench.
The invention has the following beneficial effects:
(1) the folding capacitor core is formed by transversely and reciprocally folding a double-sided metalized film, and compared with the traditional film capacitor core formed by winding, a layer of isolation paper is omitted, so that the volume can be reduced by more than 20%;
(2) the folding capacitor core is provided with the blank edge, the metalized edge and the thickened metalized edge on the longitudinal edge of the double-sided metalized film, so that the adhesive force of the terminal, the over-current capability of the terminal and the metalized surface and the separation capability of the first metalized surface and the second metalized surface are fully improved, and the use safety of the capacitor is ensured;
(3) the folding capacitor core can be formed by folding a plurality of double-sided metalized films in a transverse reciprocating manner after being overlapped, the production efficiency is high, and in addition, compared with the prior art, the isolating paper between the double-sided metalized films is omitted, so that the volume and the cost of the capacitor core are both reduced;
(4) the double-sided metallized transverse folding type film capacitor can be applied to occasions such as electric power, electronics, household appliances, high, medium and low voltage power equipment and the like, and can be connected to a circuit board;
(5) the double-sided metalized transverse folding type thin film capacitor is small in size and particularly suitable for being applied to equipment with limited internal space.
Drawings
Fig. 1 is a schematic front view of a double-sided metalized film according to a first embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of a double-sided metalized film according to a first embodiment of the present invention.
Fig. 3 is a schematic bottom view of fig. 2.
Fig. 4 is a schematic structural view of the folded double-sided metalized film according to the first embodiment of the present invention.
Fig. 5 is a schematic view of the cross-sectional structure a-a of fig. 4.
Fig. 6 is a structural diagram illustrating a folding process according to a first embodiment of the present invention.
Fig. 7 is a schematic front view of a double-sided metalized film according to a second embodiment of the present invention.
FIG. 8 is a cross-sectional view of a double-sided metallized film according to a second embodiment of the present invention.
FIG. 9 is a schematic view of a second embodiment of the present invention showing a folded structure of a plurality of double-sided metalized films after being stacked.
Fig. 10 is a schematic view of the cross-sectional structure a-a of fig. 9.
Fig. 11 is a schematic structural diagram of another embodiment of fig. 9.
Fig. 12 is a structural diagram illustrating a folding process according to a second embodiment of the present invention.
Fig. 13 is an exploded view of the first metal foil, the insulating film and the second metal foil according to the third embodiment of the present invention.
Fig. 14 is a top view of the stacked structure of fig. 13.
Fig. 15 is a schematic view of the folded back bottom structure of fig. 13.
Fig. 16 is a schematic structural diagram of the first metal foil, the insulating film and the second metal foil after being folded according to the third embodiment of the present invention.
Fig. 17 is a schematic view of the cross-sectional structure a-a of fig. 16.
Fig. 18 is a schematic structural diagram of a folding process of the first metal foil, the insulating film and the second metal foil according to the third embodiment of the present invention.
Fig. 19 is an exploded view of the first metal foil, the insulating film and the second metal foil according to another embodiment of the present invention.
Fig. 20 is a schematic structural view of the folded first metal foil, insulating film and second metal foil in fig. 19.
FIG. 21 is a schematic cross-sectional view of E-E of FIG. 20.
Detailed Description
The invention is further described with reference to the following figures and examples.
In a first embodiment, referring to fig. 1 to 5, a foldable capacitor core, in particular to a double-sided metalized transverse foldable film capacitor, includes a double-sided metalized film 10, where the double-sided metalized film 10 includes an insulating film 1, two side surfaces of the insulating film 1 are respectively provided with a first metalized surface 2 and a second metalized surface 5, longitudinal edges of the two side surfaces of the double-sided metalized film 10 are respectively provided with a first margin 11 and a second margin 12 exposing the surface of the insulating film 1, and the first margin 11 and the second margin 12 are distributed left-to-right; the longitudinal edge of the first margin 11 is also provided with a first metallized edge 4, the first metallized edge 4 being spaced from the first metallized surface 2; the longitudinal edge of said second margin 12 is also provided with a second metallized edge 7, the second metallized edge 7 being spaced from the second metallized surface 5. The longitudinal edge of the first metallized surface 2 is also provided with a first thickened metallized edge 3; the longitudinal edge of the second metallized surface 5 is also provided with a second thickened metallized edge 6.
The double-sided metalized film 10 is transversely folded back and forth (as indicated by an arrow B guide line in fig. 4) to form a double-sided metalized film folded piece, and the left and right ends of the double-sided metalized film folded piece are respectively provided with a first terminal and a second terminal 9, wherein the first terminal is in conductive contact with the first metalized surface 2, and the second terminal 9 is in conductive contact with the second metalized surface 5.
The sheet resistance of the first metallized surface 2 or the second metallized surface 5 is greater than 10 ohms and less than 300 ohms.
The first metalized surface 2 and the second metalized surface 5 are made of aluminum, copper, zinc-aluminum alloy or tin alloy, and the aluminum, the copper, the zinc-aluminum alloy or the tin alloy is attached to the surface of the insulating film 1 in an evaporation mode; the insulating film 1 is an organic film, and the organic film is a polypropylene film, a polystyrene film, a polyphenylene sulfide film, a polyester film or a polycarbonate film.
The first metallized surface 2 and the second metallized surface 5 are T-shaped or net-shaped structures. The T-shaped or meshed metallized surface includes a small area of metal layer (i.e., the surface area of some locations is small), and when a large current exceeding the circuit requirement passes through the T-shaped or meshed metallized surface during use, the small area of metal layer melts to protect other electronic components in the circuit. The two metallized surfaces may be the same or different.
The transverse fold lines of the double-sided metallized film 10 are perpendicular to the longitudinal edges of the double-sided metallized film 10.
The double-sided metalized film folding piece is formed by transversely folding and compressing a single double-sided metalized film 10 in a reciprocating mode.
The first terminal and the second terminal 9 are formed on the end face of the double-sided metalized film folding piece in a mode of ion implantation, conductive medium sputtering, metal thermal spraying or metal droplet printing.
The folding processing technology of the double-sided metalized film comprises the following steps: as shown in fig. 6, the double-sided metallized film is fed into a folding machine, and the double-sided metallized film is processed into a double-sided metallized film folded piece by the folding machine; the folding machine comprises a workbench 50, a left chuck 30, a right chuck 40 and a swing roller 20, wherein the left chuck 30 and the right chuck 40 are respectively movably arranged at the left side and the right side of the workbench 50, and the swing roller 20 is positioned above the left chuck 30 and the right chuck 40 and swings left and right; the two swing rollers 20 are arranged in parallel, a gap is formed between the two swing rollers 20, after the double-sided metalized film 10 passes through the gap, one end of the double-sided metalized film 10 is clamped on the workbench 50 through the left chuck 30 or the right chuck 40, and then the double-sided metalized film 10 is folded through the cooperation of the left and right swing rollers 20 (shown by arrows C1 and C2 in figure 6) and the left chuck 30, the right chuck 40 and the double-sided metalized film 10 on the workbench 50 in a loosening and tightening manner (shown by arrows R1 and R2 in figure 6, wherein the left chuck is in a tightening state, and the right chuck is in a loosening state). The folding process or the folding process can be added with a hot pressing step, so that the folded piece is shaped.
In the second embodiment, referring to fig. 7 to 10, a foldable capacitor core, in particular to a multi-film overlapped foldable capacitor core, includes a double-sided metalized film 10, the double-sided metalized film 10 includes an insulating film 1, two side surfaces of the insulating film 1 are respectively provided with a first metalized surface 2 and a second metalized surface 5, longitudinal edges of two side surfaces of the double-sided metalized film 10 are respectively provided with a first margin 11 and a second margin 12 exposing the surface of the insulating film 1, and the first margin 11 and the second margin 12 are distributed left-to-right; the double-sided metalized films 10 are more than two, the opposite surfaces of every two adjacent double-sided metalized films 10 are the same, each double-sided metalized film 10 is folded in a transverse reciprocating mode after being overlapped to form a staggered overlapped double-sided metalized film folding piece, the left end and the right end of each staggered overlapped double-sided metalized film folding piece are respectively provided with a first terminal 8 and a second terminal 9, the first terminals 8 are in conductive contact with the first metalized surfaces 2 of the double-sided metalized films 10, and the second terminals 9 are in conductive contact with the second metalized surfaces 5 of the double-sided metalized films 10.
The two adjacent double-sided metalized films 10 are staggered from left to right by a certain distance; alternatively, the two adjacent double-sided metallized films 10 are aligned with each other, as shown in fig. 11.
The first metallized surface 2 and the second metallized surface 5 are made of aluminum, copper, zinc-aluminum alloy or tin alloy, and the aluminum, the copper, the zinc-aluminum alloy or the tin alloy is attached to the surface of the insulating film 1 in an evaporation mode.
When the first metalized surface 2 or the second metalized surface 5 is made of aluminum, the sheet resistance of the aluminum is more than 30 ohms and less than 300 ohms; when the material of the first metallized surface 2 or the second metallized surface 5 is zinc-aluminum alloy, the sheet resistance is larger than 60 ohm and smaller than 300 ohm.
The insulating film 1 is an organic film, and the organic film is a polypropylene film, a polystyrene film, a polyphenylene sulfide film, a polyester film or a polycarbonate film.
The first metallized surface 2 and the second metallized surface 5 are T-shaped or net-shaped.
The transverse fold lines of the double-sided metallized film 10 are perpendicular to the longitudinal edges of the double-sided metallized film 10.
The folding processing technology of the double-sided metalized film comprises the following steps: referring to fig. 12, each of the double-sided metallized films 10 is fed into a folding machine, and the double-sided metallized film 10 is processed into a double-sided metallized film folded piece by the folding machine; the folding machine comprises a workbench 50, a left chuck 30, a right chuck 40 and a swing roller 20, wherein the left chuck 30 and the right chuck 40 are respectively movably arranged at the left side and the right side of the workbench 50, and the swing roller 20 is positioned above the left chuck 30 and the right chuck 40 and swings left and right; the two swing rollers 20 are arranged in parallel, a gap is formed between the two swing rollers 20, after each double-sided metalized film 10 passes through the gap, one end of each double-sided metalized film 10 is clamped on the workbench 50 through the left chuck 30 or the right chuck 40, and then the double-sided metalized film 10 is folded through the cooperation of the left and right swing rollers 20 (shown by arrows C1 and C2 in figure 12) and the left chuck 30, the right chuck 40 and the double-sided metalized film 10 on the workbench 50 in a loose and tight manner (in the aspect of loose and tight manner, the swing directions of the left chuck and the right chuck are shown by arrows R1 and R2 in figure 12, wherein the left chuck is in a tight state, and the right chuck is in a loose state).
Third embodiment, referring to fig. 13 to 17, a foldable capacitor core, in particular, a foil-type organic thin film capacitor, includes an insulating film 1, a first metal foil 2 and a second metal foil 3, wherein the first metal foil 2 and the second metal foil 3 are staggered from each other in a left-right direction, and a blank edge is exposed on each of left and right longitudinal sides of the insulating film 1, and is disposed on each of two side surfaces of the insulating film 1; the first metal foil 2 and the second metal foil 3 are respectively stacked on the two side surfaces of the insulating film 1 and are folded back and forth together in a transverse reciprocating manner (the folding direction is shown by an arrow B in fig. 16), so as to form a folded piece, the left end and the right end of the folded piece are respectively provided with a first terminal 4 and a second terminal 5, the first terminal 4 is in conductive contact with the first metal foil 2, and the second terminal 5 is in conductive contact with the second metal foil 3.
The width of the insulating film 1 is larger than the widths of the first metal foil 2 and the second metal foil 3.
One side longitudinal edge of the first metal foil 2 is aligned with one side longitudinal edge of the insulating film 1, and the other side longitudinal edge of the insulating film 1 is aligned with one side longitudinal edge of the second metal foil 3.
The first metal foil 2 and the second metal foil 3 are aluminum foils or copper foils.
The insulating film 1 is an organic film, and the organic film is a polypropylene film, a polystyrene film, a polyphenylene sulfide film, a polyester film or a polycarbonate film.
The transverse folding lines of the first metal foil 2, the insulating film 1 and the second metal foil 3 are perpendicular to the longitudinal edges of the insulating film 1.
The first terminal 4 and the second terminal 5 are formed on the end face of the double-sided metalized film folding piece in a mode of ion implantation, conductive medium sputtering, metal thermal spraying or metal droplet printing.
The foil type organic thin film capacitor is mainly applied to medium and high voltage power equipment.
The processing technology comprises the following steps: as shown in fig. 18, the insulating film 1, the first metal foil 2, and the second metal foil 3 are fed into a folding machine and processed into a folded piece by the folding machine; the folding machine comprises a workbench 50, a left chuck 30, a right chuck 40 and a swing roller 20, wherein the left chuck 30 and the right chuck 40 are respectively movably arranged at the left side and the right side of the workbench 50, and the swing roller 20 is positioned above the left chuck 30 and the right chuck 40 and swings left and right; the two oscillating rollers 20 are arranged in parallel, a gap is formed between the two oscillating rollers 20, the insulating film 1, the first metal foil 2 and the second metal foil 3 penetrate through the gap to form the laminated film 10, one end of the laminated film 10 is clamped on the workbench 50 through the left chuck 30 or the right chuck 40, and then the laminated film 10 is folded through the cooperation of the left oscillating roller 20 and the right oscillating roller 20 (shown by arrows C1 and C2 in fig. 18) and the loosening and tightening of the left chuck 30 and the right chuck 40 (shown by arrows R1 and R2 in fig. 18, wherein the left chuck is in a pressed state, and the right chuck is in an loosened state) and the laminated film 10 on the workbench 50.
The fourth embodiment is different from the third embodiment in that: referring to fig. 19 to 21, the width of the insulating film 1 is greater than the widths of the first and second metal foils 2 and 3; the left and right longitudinal edges of the two side surfaces of the insulating film 1 are exposed with blank edges, the first terminal 4 is in conductive connection with the transverse edge of the first metal foil 2, and the second terminal 5 is in conductive connection with the transverse edge of the second metal foil 3.
Claims (7)
1. The utility model provides a foldable electric capacity core, includes two-sided metallized film, and two-sided metallized film includes insulating film, and insulating film both sides surface is equipped with first metallized surface and second metallized surface respectively, its characterized in that: the double-sided metalized film is transversely folded in a reciprocating manner, a transverse folding line of the double-sided metalized film is perpendicular to the longitudinal edge of the double-sided metalized film to form a double-sided metalized film folding piece, a first terminal and a second terminal are arranged on the double-sided metalized film folding piece, the first terminal is in conductive contact with the first metalized surface, and the second terminal is in conductive contact with the second metalized surface;
the longitudinal edges of the two side surfaces of the double-sided metallized film are respectively provided with a first blank edge and a second blank edge which are exposed out of the surface of the insulating film, and the first blank edge and the second blank edge are distributed from left to right;
the double-sided metalized film folding piece is formed by folding more than two double-sided metalized films and then transversely folding and compressing the two double-sided metalized films after reciprocating;
the first terminal and the second terminal are formed on the end face of the double-sided metalized film folding piece in the modes of ion implantation, conductive medium sputtering, metal thermal spraying or metal droplet printing.
2. The folded capacitor core of claim 1, wherein: the longitudinal edge of the first margin is also provided with a first metallized edge, which is spaced from the first metallized surface; the longitudinal edge of the second margin is also provided with a second metallized edge spaced from the second metallized surface.
3. The folded capacitor core of claim 1, wherein: the longitudinal edge of the first metalized surface is also provided with a first thickened metalized edge; the longitudinal edge of the second metallized surface is also provided with a second thickened metallized edge.
4. The folded capacitor core of claim 1, wherein: the first metalized surface and the second metalized surface are made of aluminum, copper, zinc-aluminum alloy or tin alloy, and the aluminum, the copper, the zinc-aluminum alloy or the tin alloy is attached to the surface of the insulating film in an evaporation mode; or the first metalized surface is replaced by a first metal foil, the second metalized surface is replaced by a second metal foil, and the first metal foil and the second metal foil are respectively arranged on two sides of the insulating film; the insulating film is an organic film, and the organic film is a polypropylene film, a polystyrene film, a polyphenylene sulfide film, a polyester film or a polycarbonate film.
5. The folded capacitor core of claim 1, wherein: the first terminal and the second terminal are formed on the end face of the double-sided metalized film folding piece in the modes of ion implantation, conductive medium sputtering, metal thermal spraying or metal droplet printing.
6. A process for manufacturing a folded capacitor core according to claim 1, wherein: step one, preparing a double-sided metalized film coil stock; feeding the double-sided metalized film discharged from the double-sided metalized film coil stock into a folding machine, and processing the double-sided metalized film into a double-sided metalized film folding piece through the folding machine; respectively arranging a first terminal and a second terminal at two ends of the double-sided metalized film folding piece to form a capacitor core;
or, step one, preparing a large-amplitude double-sided metalized film coil material which is provided with more than two groups of double-sided metalized films in parallel; feeding the large-amplitude double-sided metalized films discharged from the large-amplitude double-sided metalized film coil stock into a splitting machine to split the large-amplitude double-sided metalized films into each group of double-sided metalized films; step three, feeding each group of the cut double-sided metalized films into a folding machine respectively, and processing the double-sided metalized films into double-sided metalized film folding pieces through the folding machine; respectively arranging a first terminal and a second terminal at two ends of the double-sided metalized film folding piece to form a capacitor core;
or, step one, preparing a large-amplitude double-sided metalized film coil material which is provided with more than two groups of double-sided metalized films in parallel; feeding the large-amplitude double-sided metalized film discharged from the large-amplitude double-sided metalized film coil stock into a folding machine, and processing the large-amplitude double-sided metalized film into a wide-amplitude double-sided metalized film folding piece through the folding machine; cutting the wide double-sided metalized film folding piece into a corresponding double-sided metalized film folding piece according to the width specification of the double-sided metalized film; and step four, respectively arranging a first terminal and a second terminal at two ends of the double-sided metalized film folding piece, namely forming the capacitor core.
7. The process for manufacturing a folded capacitor core according to claim 6, wherein: the folding machine comprises a workbench, a left chuck, a right chuck and swing rollers, wherein the left chuck and the right chuck are respectively movably arranged on the left side and the right side of the workbench, and the swing rollers are positioned above the left chuck and the right chuck and are arranged in a left-right swinging manner; the swing rollers are arranged in parallel, a gap is formed between the two swing rollers, after the double-sided metalized film or the large-amplitude double-sided metalized film passes through the gap, one end of the double-sided metalized film or the large-amplitude double-sided metalized film is clamped on the workbench through the left chuck or the right chuck, and then the double-sided metalized film or the large-amplitude double-sided metalized film is folded by means of one-loose and close fit of the swing rollers which swing left and right, the left chuck and the right chuck and the double-sided metalized film or the large-amplitude double-sided metalized film on the workbench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910444613.7A CN110233049B (en) | 2019-05-27 | 2019-05-27 | Folding capacitor core and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910444613.7A CN110233049B (en) | 2019-05-27 | 2019-05-27 | Folding capacitor core and processing technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110233049A CN110233049A (en) | 2019-09-13 |
| CN110233049B true CN110233049B (en) | 2022-09-02 |
Family
ID=67861160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910444613.7A Active CN110233049B (en) | 2019-05-27 | 2019-05-27 | Folding capacitor core and processing technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110233049B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314343B (en) * | 2021-05-28 | 2022-10-18 | 西安西电电力电容器有限责任公司 | Self-healing capacitor element formed by winding folded metallized film and processing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201374252Y (en) * | 2009-01-16 | 2009-12-30 | 厦门法拉电子股份有限公司 | Novel stacked wound film capacitor |
| US9418791B1 (en) * | 2014-10-17 | 2016-08-16 | Black Night Enterprises, Inc. | Folded stack segmented film capacitor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323409C (en) * | 2001-06-08 | 2007-06-27 | 松下电器产业株式会社 | Mfg. method of double-sided metallization film and metallization film capacitor using same |
| WO2002101770A1 (en) * | 2001-06-08 | 2002-12-19 | Matsushita Electric Industrial Co., Ltd. | Metallized film capacitor |
| CN106935405B (en) * | 2017-03-06 | 2018-09-04 | 西南交通大学 | A kind of folding film capacitor and production method |
| CN209980994U (en) * | 2019-05-27 | 2020-01-21 | 佛山市孔星材料应用研究院有限公司 | Double-sided metallized transverse folding type thin film capacitor |
-
2019
- 2019-05-27 CN CN201910444613.7A patent/CN110233049B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201374252Y (en) * | 2009-01-16 | 2009-12-30 | 厦门法拉电子股份有限公司 | Novel stacked wound film capacitor |
| US9418791B1 (en) * | 2014-10-17 | 2016-08-16 | Black Night Enterprises, Inc. | Folded stack segmented film capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110233049A (en) | 2019-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101586121B1 (en) | Lamination device including electrode guide | |
| JP5971095B2 (en) | Storage element and method for manufacturing the same | |
| US20200136194A1 (en) | Electrode assembly, and lithium ion electric roll using the electrode assembly | |
| JP5761576B2 (en) | Multilayer battery and method for manufacturing multilayer electrode body | |
| CN110233049B (en) | Folding capacitor core and processing technology thereof | |
| CN102208679B (en) | Wound continuous laminated square lithium ion power battery | |
| CN117083748A (en) | Positive electrode sheet and battery | |
| CN209980995U (en) | Multi-film staggered superposed folding capacitor core | |
| CN209980994U (en) | Double-sided metallized transverse folding type thin film capacitor | |
| US8369065B2 (en) | Electric double layer capacitor | |
| JPH11260418A (en) | Nonaqueous electrolyte battery | |
| KR101785759B1 (en) | Electrode assembly and method for manufacturing the same | |
| CN114497749B (en) | Lamination cell structure and lamination battery | |
| CN108780869B (en) | Electrical storage device | |
| JP2000164243A (en) | Manufacture of laminated electrode | |
| JP4791979B2 (en) | Manufacturing method of electric double layer capacitor | |
| JP2013149813A (en) | Electrode structure for laminate type energy device, method of manufacturing the same, and electric double-layer capacitor | |
| CN209980987U (en) | Double-sided metallized film for capacitor core | |
| CN221614140U (en) | Battery cell and battery | |
| JPH09102302A (en) | Battery electrode, its manufacture, and battery | |
| CN210897000U (en) | Double-sided misalignment metallized film | |
| CN220774673U (en) | Laminated battery cell with alternately arranged positive and negative plates and battery | |
| CN217562605U (en) | Laminated composite belt and battery roll core | |
| CN217983397U (en) | Pole piece unit group of laminated battery and manufacturing equipment | |
| JP7477077B2 (en) | Electrode forming device with notching pilot pin and method for forming electrodes using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210915 Address after: 528300 Lunjiao Industrial Zone, Lunjiao Street, Shunde District, Foshan City, Guangdong Province Applicant after: GUANGDONG MENLO ELECTRIC POWER Co.,Ltd. Address before: 528300 3rd floor, Ming Road Industrial Park, No.6 north, Xinxi Third Road, Lunjiao Industrial Zone, Xiyong village committee, Shunde District, Foshan City, Guangdong Province Applicant before: FOSHAN KONGXING MATERIAL APPLICATION RESEARCH INSTITUTE Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |